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Finding the Fourth Proportional to 968.25, 1,452.38 and 708.51

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Solution

The fourth proportional to 968.25, 1,452.38 and 708.51 is: 1,062.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.25 : 1,452.38 = 708.51 : x
  2. Step 2: Convert to fraction form
    968.25/1,452.38 = 708.51/x
  3. Step 3: Cross multiply
    968.25x = 1,452.38 × 708.51
  4. Step 4: Simplify right side
    968.25x = 1,029,022.21
  5. Step 5: Solve for x
    x = 1,029,022.21/968.25
  6. Step 6: Final answer
    x = 1,062.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.